On average, an M15A4 .223 caliber carbine rifle costs about 1,400 dollars. The can be found in specialized gun stores and in gun magazines.
Depended on the rifle. $5-$500
blue
$10
No such weapon.
in general 180 $ is the minimum for a reliable rifle.
$ 9000
$1,032 per rifle according to the DoD
30$
$200-1000 USD in 2012
$2300+
100-500
500-1000 USD